I recently purchased a New Multi-Region Denon ADV1000 and have connected it up to my existing Sony surround sound speakers. Unfortunately, there is a faint noise coming from the speakers that is duplicating what the insides of the machine is doing. The main problem is when playing a disc there is a "tweetering" noise in the backjground that is annoying when it is a quiet scene. Is there anything I can do with the set-up of the system, a probelem with the machine or are my speaker cables not up to it? Any thoughts will be greatly appreciated!!